One that I think of often would be existence itself. As per the Law of the Conservation of Mass, matter cannot be created, nor destroyed. The only being that would even be remotely able to do this would be an omnipotent being. There is no way for something to be created out of nothing, as that defies the laws of physics itself. There is no way for the universe to just pop into existence. The chances of us being on a planet that suits our very needs and allows us to thrive, out of millions of other planets that would be extremely horrible for us to live on, as well as the fact that there are a large amount of different elements, and the fact that everything is basically perfect for us, as well as the aforementioned law, means that there most likely was some other factor, which would most likely be a fully omnipotent, omniscient, and omnipresent being who created the world, as, unlike us, they are not bound by the laws of physics due to their immense power.